1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/crash58.C b/gcc/testsuite/g++.dg/template/crash58.C
new file mode 100644
index 000000000..5194ee263
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/crash58.C
@@ -0,0 +1,10 @@
+//PR 26938
+
+template<int, int = 0> struct A;  // { dg-message "previous declaration" }
+
+template<int> struct A            // { dg-error "template" }
+{
+  A();
+};
+
+A<0> a;                           // { dg-error "incomplete type" }